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Carbon Monoxide Semiconductor MQ-7 CO Gas Sensor

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Carbon Monoxide Semiconductor MQ-7 CO Gas Sensor Carbon Monoxide Semiconductor MQ-7 CO Gas Sensor

Carbon Monoxide Semiconductor MQ-7 CO Gas Sensor

Price: $4.92
SKU: 79903
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Description

Carbon Monoxide Semiconductor MQ-7 CO Gas Sensor

Model No.

MQ-7

Sensor Type

Semiconductor

Standard Encapsulation

Plastic

Detection Gas

Carbon Monoxide

Concentration

10-10000ppm CO

Circuit

Loop Voltage

Vc

≤10V DC

Heater Voltage

VH

 5.0V±0.2V AC or DC(High)

1.5V±0.1V AC or DC(Low)

Heater Time

TL

60±1S(High) 90±1S(Low)

Load Resistance

RL

Adjustable

Character

Heater Resistance

RH

31Ω±3Ω (Room Tem.)

Heater consumption

PH

≤350mW

Sensing Resistance

Rs

2KΩ-20KΩ(in 100ppm CO )

Sensitivity

S

Rs(in air)/Rs(100ppm CO)≥5

Slope

α

≤0.6(R300ppm/R100ppm CO)

Condition

Tem.  Humidity

20°C±2°C, 65%±5%RH

Standard test circuit

Vc:5.0V±0.1V,

VH(High): 5.0V±0.1V,

VH(Low): 1.5V±0.1V

Preheat time

Over 48 hours

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